Draw a vector representing the velocity.
?
30 mph due south
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: B
Mathematics
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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the acceleration vector.r(t) = (7 ln(3t))i + (9t3)j
A. a = - 
t-2i + 54tj
B. a = 
t-2i + 54tj
C. a = - 
i + 54tj
D. a = 
i + 27tj
Mathematics
Provide an appropriate response.When is the square of the sum the sum of a square; i.e., when is (A + B)2 = A2 + B2 ?
What will be an ideal response?
Mathematics
Find the missing expression.
- 
= 
A. -5x + 2 B. 5x - 4 C. 5x + 4 D. -5x - 2
Mathematics
Add.12.2 + 16.461
A. 28.661 B. -4.261 C. 28.761 D. 4.261
Mathematics